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HomeProduct name list4'-Bromoacetophenone

4'-Bromoacetophenone

Synonym(s):1-(4-Bromophenyl)ethanone;1-Acetyl-4-bromobenzene;4′-Bromoacetophenone

  • CAS NO.:99-90-1
  • Empirical Formula: C8H7BrO
  • Molecular Weight: 199.04
  • MDL number: MFCD00000105
  • EINECS: 202-799-3
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2024-12-18 14:07:02
4'-Bromoacetophenone Structural

What is 4'-Bromoacetophenone?

Chemical properties

white to light yellow crystals. soluble in alcohol, ether, glacial acetic acid, benzene, carbon disulfide and petroleum ether, insoluble in water. Easy to volatilize with water vapor.

The Uses of 4'-Bromoacetophenone

4'-Bromoacetophenone is an important organic synthesis intermediate, widely used in synthetic medicine, pesticides, dyes, flavors and fragrances, perfumes, Intermediates of Liquid Crystals etc.

The Uses of 4'-Bromoacetophenone

Labeled 4?-Bromoacetophenone possess activity against positive phototaxis of Chlamydomonas cells. A fundamental starting material for organic synthesis.

Preparation

4'-Bromoacetophenone is synthesized by the reaction of bromobenzene and acetic anhydride in the presence of aluminum trichloride.
Add bromobenzene and dry carbon disulfide into the reactor, put in powdered anhydrous aluminum trichloride, heat until it starts to reflux, stop heating, add acetic anhydride dropwise, and then reflux for 1 hour after adding, steam out carbon disulfide, and put it while it is still hot. The reactant was poured into the hydrochloric acid ice-water mixture, filtered to dryness, and distilled under reduced pressure to obtain p-bromoacetophenone.

Synthesis Reference(s)

The Journal of Organic Chemistry, 51, p. 5400, 1986 DOI: 10.1021/jo00376a064
Tetrahedron Letters, 26, p. 4657, 1985 DOI: 10.1016/S0040-4039(00)98778-1

Purification Methods

Crystallise it from EtOH, MeOH or from pet ether (b 80-100o). [Tanner J Org Chem 52 2142 1987, Beilstein 7 IV 647.]

Properties of 4'-Bromoacetophenone

Melting point: 108-110 °C(lit.)
Boiling point: 255 °C(lit.)
Density  1.64
refractive index  1.5540 (estimate)
Flash point: >230 °F
storage temp.  Store below +30°C.
solubility  methanol: 0.1 g/mL, clear
form  Crystals or Crystalline Flakes
color  White to light yellow
Water Solubility  Soluble in Chloroform. Insoluble in water.
Merck  14,1403
BRN  386015
CAS DataBase Reference 99-90-1(CAS DataBase Reference)
NIST Chemistry Reference Ethanone, 1-(4-bromophenyl)-(99-90-1)
EPA Substance Registry System Ethanone, 1-(4-bromophenyl)- (99-90-1)

Safety information for 4'-Bromoacetophenone

Signal word Warning
Pictogram(s)
ghs
Exclamation Mark
Irritant
GHS07
GHS Hazard Statements H315:Skin corrosion/irritation
H319:Serious eye damage/eye irritation
H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
Precautionary Statement Codes P261:Avoid breathing dust/fume/gas/mist/vapours/spray.
P264:Wash hands thoroughly after handling.
P264:Wash skin thouroughly after handling.
P271:Use only outdoors or in a well-ventilated area.
P280:Wear protective gloves/protective clothing/eye protection/face protection.
P302+P352:IF ON SKIN: wash with plenty of soap and water.
P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

Computed Descriptors for 4'-Bromoacetophenone

InChIKey WYECURVXVYPVAT-UHFFFAOYSA-N

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